Post production workflows. What works best for you?

From what I can hear, this test isn't so good because he's picking up the camera noise in his comparisons, so we're not in a completely quiet room. He should be doing this in a sound booth. In fact the MixPre is picking up more of the camera noise (but not it's own distortion) because (I'm guessing) it's a more sensitive mic pre. But because you have the camera noise there, it's harder to compare the noise floors which are made by noisy pre-amps not environmental noise.

You're experience and mine differ greatly. I am an audio pro, and I use audio from both JL and BT all the time. Never any issues with either. BT has been in the business for a very, very long time. They're not "new". But, everyone has their favorites.

I'd rather a test in real world conditions than a sound booth. No one uses these devices in a sound booth, really.

I agree that sound booths aren't where you shoot location sound (although it is where you do voice-overs), but if you're testing a particular variable like noise floor, not having camera fan noise is probably a good idea. He was making a point about the onboard pre-amps vs. external mixer pre-amps, so the comparison was valid between the camera's pre's and the mixer's pre's. But I agree that the JuicedLink was closer to the MixPre than the camera, but the fan noise got in the way for me.

The MixPre is very simple and doesn't have a lot of bells and whistles like AGC defeat. At least most Canon DSLRs now have AGC defeat as an option, so we don't have to deal with that crap anymore. If only they'd let you do line level in, or let you bypass their crappy pre's, we'd be cooking with gas....

I'd actually like to meet, in person, the guy who decided AGC was a good idea in a camera...